Being late, not keeping your word or lying are highly reactive activities no matter which side of the equation you find yourself on. Every child has had a parent be late, not keep their promise or out and out lie to them. Every child has also done those things. Since everyone is just a child reacting to their past, these are potentially emotional situations. Try and remember that and attempt to step away from the projection of shame, blame and condemnation. Remember, everyone is in their character and no one is guilty. It is all just another opportunity to not make it real, to forgive.